John was piloting a plane behind a car but was never able to overtake it. Why?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Which is faster, Heat or Cold ? Explain.

How can you leave a room with two legs and return with six legs?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Count the number of lines in the image below ?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?